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L6470H :What concessions motor run better? Vibration noise

Question asked by xiaohu.ji on Nov 2, 2013
Latest reply on Dec 16, 2013 by Enrico Poli
how to calc "Running target current"??
stepper motor parameter:1.5A current【nameplate,this is RMS current??? 
rated current???】

min speed:50 steps/s,max speed 2000 steps/s, ACC 1000 steps/s2,

test board:EVAL6470H && PCC009V2

But in the process of running:
Don't turn
Vibration noise is larger
What concessions motor run better?